Elevator-bucket



(No Model.)

F. G. WINKL-ER. ELEVATOR BUCKET.

No. 468,517. PatentedPeb.9, 1892.

UNITED STATES PATENT OFFICE.

FRIEDRICH GEORG WINKLER, OF ZSGHOPAU, GERMANY, ASSIGNOR TO THE FRIEDRICHGEORG WINKLER MACHINE COMPANY, MAINE.

ELEVATOR-BUCKET.

SPECIFICATION forming part of Letters Patent No. 468,517, dated February9, 1892. Application filed December 2, 1890. Renewed August 1, 1891.Serial No. 401,394. (No model.)

T on whom it may concern.-

Be it known that I, FRIEDRICH GEORG VVINKLER, of Zschopau, Saxony,Germany, have invented a certain Improvement in Elevator-Buckets forElevating Flour and other Finely-Comminuted Materials, of which thefollowing is a specification.

This invention consists of an elevatorbucket stamped up from one pieceof sheet to metal approximately V-shaped in cross-section, having arounded bottom with flaring sides, one of which is perforated for thereception of the rivets or other devices by which the bucket is fastenedto the elevator-belt,

the ends of the bucket beingbent over to form narrow flanges, whichsubserve the double purpose of stiffening the bucket and increas- I ingits capacity to hold the comminuted materials which it is employed toelevate.

In elevator-buckets with closed ends,which are perpendicular to thebottom and sides,

flour and other finely-comminuted materials are likely to stick and beretained in the cor ners formed by the junction of the ends with thebottom. This is avoided in the present invention by the abandonment ofthe closed ends and the employment in place of them of the narrowflanges referred to.

The accompanying drawings, illustrating 0. the improvement, are asfollows: Figure 1 is.

an isometrical perspective of one of the buckets and a portion of theelevator-beltto which it is attached by rivets. Fig. 2 is a centrallongitudinal section of the bucket containing a load of flour, takenthrough the planeindicated by the dotted line a: w on Fig. 3; and Fig. 3is an end elevation.

The bucket represented in the drawings is adapted to be struck up in onepiece in dies from a single piece of sheet-iron or other 0 sheet metal.It has a rounded bottom a, with flaring sides I) and c, and is providedat its opposite ends with narrow flanges d d. The side 0 is perforatedfor the reception of the rivets e e, by which the bucket is secured to 5the elevator-belt f. The flanges (Z cl extend up the flaring side 0 toapoint just above the height of the fastening-rivets. Preferably theflanges cl d gradually increase in width as they extend up the ends ofthe flaring sideb and become rounded in cross-section, so that the freeedge I) of the bucket is somewhat in the shape of a scoop by reason ofits being curved atits opposite extremities. The flanges d d, inaddition to acting as stiffening-corrugations, serve to increase thecapacity of the bucket to contain the load of flour g, while they are sonarrow that there is no danger thatthe flour will lodge and be retainedat the sides of the bucket.

As the bucket is made in one piece, there is no danger of rivets fallingout or pieces coming apart and getting into the material which is beingelevated, as there is when buckets are made of several pieces rivetedto- 6 5 gether.

l/Vhat is claimed in the invention as a new article of manufacture is Anelevator-bucket consisting of one single piece of sheet metal having arounded bottom with flaring sides and provided at its opposite ends withnarrow inwardly-turned flanges, substantially as and for the purposesset forth.

FRIEDRICH GEORG WINKLER.

Witnesses:

E. L. CARY, A. M. J ONES.

